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公开(公告)号：US20130177127A1
公开(公告)日：2013-07-11
申请号：US13691891
申请日：2012-12-03
IPC分类号： G21C3/356
CPC分类号： G21C3/356 , G21C3/344 , G21C3/352 , G21Y2002/201 , G21Y2002/302 , G21Y2002/303 , G21Y2004/30 , Y02E30/40
摘要： A support grid for a nuclear fuel assembly, the nuclear fuel assembly including a generally cylindrical fuel rod with a diameter, wherein the support grid includes a frame assembly having a plurality of generally circular cells and a plurality of helical frame members. The helical frame members are disposed in the cells and are structured to contact the cell as well as a fuel rod. The helical fuel rod contact portion may have a variable pitch.
摘要翻译： 用于核燃料组件的支撑栅格，所述核燃料组件包括具有直径的大致圆柱形燃料棒，其中所述支撑栅格包括具有多个大致圆形电池和多个螺旋形框架构件的框架组件。 螺旋形框架构件设置在单元中并且被构造成接触单元以及燃料棒。 螺旋燃料棒接触部分可以具有可变的间距。
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公开(公告)号：US20100322371A1
公开(公告)日：2010-12-23
申请号：US12871079
申请日：2010-08-30
申请人： XIAOYAN (JANE) JIANG , YIBAN XU , Z. E. KAROUTAS
发明人： XIAOYAN (JANE) JIANG , YIBAN XU , Z. E. KAROUTAS
IPC分类号： G21C3/344
摘要： A support grid for a nuclear fuel assembly, the fuel rod assembly having a generally cylindrical fuel rod with a diameter, wherein the support grid includes a frame assembly having a plurality of outer straps and a plurality tubular members and/or helical frame members. The tubular members/helical frame members have a contact portion structured to contact an adjacent helical frame member and at least one helical fuel rod contact portion with a lesser diameter. The lesser diameter is generally equivalent to the fuel rod diameter such that a fuel rod disposed in the helical frame member would engage the inner helical frame member at helical fuel rod contact portion. The helical fuel rod contact portion may have a variable pitch.
摘要翻译： 用于核燃料组件的支撑格栅，燃料棒组件具有直径为大致圆柱形的燃料棒，其中支撑格栅包括具有多个外带和多个管状构件和/或螺旋框架构件的框架组件。 管状构件/螺旋框架构件具有被构造成接触相邻的螺旋框架构件和至少一个具有较小直径的螺旋式燃料棒接触部分的接触部分。 较小的直径通常等于燃料棒直径，使得设置在螺旋形框架构件中的燃料棒将以螺旋形燃料棒接触部分接合内部螺旋形框架构件。 螺旋燃料棒接触部分可以具有可变的间距。
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